// Copyright (C) 2025, The Duplicati Team
// https://duplicati.com, hello@duplicati.com
// 
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// copy of this software and associated documentation files (the "Software"), 
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// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
// and/or sell copies of the Software, and to permit persons to whom the 
// Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in 
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
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namespace Duplicati.CommandLine.ServerUtil;

/// <summary>
/// Various helper methods.
/// </summary>
public static class HelperMethods
{
    /// <summary>
    /// Reads a password from the console.
    /// </summary>
    /// <param name="prompt">The prompt to display.</param>
    public static string ReadPasswordFromConsole(string prompt)
    {
        Console.Write(prompt);
        string password = "";
        while (true)
        {
            ConsoleKeyInfo keyInfo = Console.ReadKey(true);
            if (keyInfo.Key == ConsoleKey.Enter)
            {
                break;
            }
            if (keyInfo.Key == ConsoleKey.Backspace)
            {
                if (password.Length > 0)
                {
                    password = password.Substring(0, password.Length - 1);
                    Console.Write("\b \b");
                }
            }
            else if (keyInfo.KeyChar != '\u0000') // Only accept if the key maps to a Unicode character (e.g., ignore F1 or Home).
            {
                password += keyInfo.KeyChar;
                Console.Write("*");
            }
        }

        Console.WriteLine();
        return password;
    }
}
